Home / 2,193.58-3,026.78-1,249.39

Finding the Fourth Proportional to 2,193.58, 3,026.78 and 1,249.39

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Solution

The fourth proportional to 2,193.58, 3,026.78 and 1,249.39 is: 1,723.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,193.58 : 3,026.78 = 1,249.39 : x
  2. Step 2: Convert to fraction form
    2,193.58/3,026.78 = 1,249.39/x
  3. Step 3: Cross multiply
    2,193.58x = 3,026.78 × 1,249.39
  4. Step 4: Simplify right side
    2,193.58x = 3,781,625.21
  5. Step 5: Solve for x
    x = 3,781,625.21/2,193.58
  6. Step 6: Final answer
    x = 1,723.95

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Half scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.